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Chapter 2. Installation and Operation

6.Make selections by entering the number corresponding to the chosen parameter. Press ESC on the keyboard to return to the previous screen. End a terminal session by selectingLOGOUT from theMAIN MENU or by pressingCtrl-C at any time.

Figure 2-5.Terminal Main Menu

The letter displayed in the upper left-handcorner of the terminal menu indicates which controller card is active (A or B).

Navigating Within the Menus

Navigate within the MX2800 STS-1terminal menus using the following procedures:

If you want to...

Press...

 

 

select an item

the number corresponding to your choice,

 

and then press the Enter key

 

 

scroll left and right

the left and right arrow keys. Additional

within the same

screens are available when < or> is dis-

screen

played in the top portion of the menu

 

 

return to the previous

the ESC key

menu

 

 

 

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MX2800 User Manual

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Chapter 2. Installation and Operation

If you want to...

Press...

 

 

end the terminal

Ctrl-C

session

 

 

 

refresh the display

Ctrl-R

 

 

The MX2800 STS-1MAIN MENU consists of the following sections:

Status

Provides information on the current state of the STS-1,power supplies, system, and VT/Port lines. For more detailed information, seeChapter 4, Status.

Statistics

Provides detailed statistical information (both current and historical) for the STS-1,VT, and Port lines. For more detailed information, seeChapter 5, Statistics.

Configuration

Sets STS-1network, VT/Port, and system management parameters. For more detailed information, seeChapter 3, Configuration.

Diagnostics

Performs loopback tests over the STS-1,VT/Port lines. For more detailed information, seeChapter 6, Diagnostics.

Logout

The LOGOUT selection ends the terminal session and logs out of the system. Password entry is required before a new session can begin. The unit will also logout of a terminal session automatically if the session remains inactive for a certain period of time. For more information, seeTerminal Timeout on page 3-35.

ACO Buttons

The ACO (alarm cut off) buttons allow you to turn off an active audible alarm. The buttons are recessed, so you must use a pen or other pointed instrument to press them. Once you have used anACO

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MX2800 User Manual

61200659L1-1

Chapter 2. Installation and Operation

button to deactivate an alarm, it remains disabled until the condition has cleared.

Alarms can also be turned off remotely by using a selection found in the STATUS menu. SeeAcknowledge Alarms (ACO) on page 4-12 for more information.

LED Descriptions

The MX2800 STS-1has LED status indicators for the power supplies, theSTS-1state, the controller cards, and the individual T1s/E1s. These LEDs are identified in the following subsections.

Power Supply A/B

The PWR LED is active when the unit is on and receiving full power. TheCHK LED is active when the power supply is failing or is providing low power and needs to be checked.

Status LEDs

The STATUS LEDs apply to the two controller cards. The LEDs provided areACT (active),NET,ALM (alarm), andPRF (performance). Different conditions are indicated by the state of the LED (it remains solid, blinks, or alternates colors). The condition descriptions vary depending on whether the LED represents the active controller card or the controller card on standby. LED definitions are for the active cards are provided inTable 2-2 on page 2-14. LED definitions for T1/E1 cards are provided inTable 2-3 on page 2-15.

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Chapter 2. Installation and Operation

 

 

Table 2-2.LED Conditions for Active Cards

 

 

 

 

 

 

LED State

Card Condition

 

 

 

 

 

 

green solid

Normal (All OK)

 

 

 

 

 

 

green/amber alternating

Normal + Console Open

 

 

 

 

 

 

red solid

Self Test Failed

ACT

 

 

 

 

amber solid

Software Update in Progress

 

 

 

 

 

 

red/amber alternating

Self Test Failed + Console

 

 

 

Open

 

 

 

 

 

 

red blinking

Card Failure

 

 

 

 

 

 

green solid

Normal (All OK)

 

 

 

 

 

 

red blinking

LOS

 

 

 

 

 

 

red solid

LOFM. AIS-P,AIS-L,RFI-L,

NET

 

RFI-P,LOP, SLM, UEQ

 

 

amber solid

In Test (Local)

 

 

 

 

 

 

amber blinking

In Test (Remote)

 

 

 

 

 

 

red/amber alternating

In Test + Alarms

 

 

 

 

 

 

green solid

Normal (No Alarm)

 

 

 

 

 

 

red blinking

Critical Alarm

 

 

 

 

 

 

red solid

Non-CriticalAlarm

 

 

 

 

ALM

amber blinking

Critical Alarm Suppressed

 

 

 

(ACO button was pushed)

 

 

 

 

 

 

amber solid

Non-CriticalAlarm Sup-

 

 

 

pressed (ACO button was

 

 

 

pushed)

 

 

 

 

 

 

green solid

Normal (All OK)

 

 

 

 

PRF

 

red flash (once per event)

Single/Burst CV

 

 

 

 

red blinking

Continuous Code Violations

 

 

 

 

 

 

 

 

red solid

XCV Threshold Exceeded

 

 

 

 

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Chapter 2. Installation and Operation

 

 

Table 2-3.LED Conditions for Standby Cards

 

 

 

 

 

 

LED State

Card Condition

 

 

 

 

 

 

green blinking

Normal (All OK)

 

ACT

 

 

 

amber solid

Software Update in Progress

 

 

 

 

 

 

red blinking

Self Test Failed

 

 

 

 

 

NET

off

Normal (All OK)

 

 

 

 

red blinking

STS-1Failure

 

 

 

 

 

 

 

ALM

off

Normal (No Alarm)

 

 

 

 

 

PRF

off

Normal (All OK)

 

 

 

 

T1/E1 Status LEDs

These LEDs apply to each individual T1 or E1. Different conditions are indicated by the state of the LED (its color and whether it flashes, alternates color, or remains solid). The condition descriptions vary depending on whether the LEDs represent T1s or E1s of the active controller card or the controller card on standby. Table 2-4 on page 2-16 provides LED definitions for the active and standby cards.

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Chapter 2. Installation and Operation

 

Table 2-4.T1/E1 LED Conditions

 

 

 

 

LED State

T1/E1 Condition

 

 

 

 

green solid

Normal (All OK)

 

 

 

 

off

Disabled

 

 

 

 

red blinking

LOS

 

 

 

Active

red flash (once per

Single/Burst CV

event)

 

Card

 

 

red/green alternating

XCV Threshold Exceeded

 

 

 

 

 

amber solid

In Test (Local)

 

 

 

 

amber blinking

In Test (Remote)

 

 

 

 

red/amber alternating

In Test + Alarm

 

 

 

 

off

Normal (All OK) or

Standby

 

N/A (in the case of E1 con-

Card

 

figuration)

 

red blinking

T1/E1 Failure

 

 

 

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Chapter 3 Configuration

To configure the MX2800 STS-1,use a 10BaseT ethernet connection, a SLIP/PPP modem port, or aVT-100terminal.Figure 3-1 shows theCONFIGURATION menu andFigure 3-2 on page 3-2shows the menu tree.

Figure 3-1.Configuration Menu

Detailed descriptions of the menu options shown in Figure 3-1 are given in the following sections.

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Chapter 3. Configuration

 

 

 

 

 

 

 

Line Length

 

 

 

 

 

 

STS-1Configuration

 

Timing

 

 

 

 

 

 

 

 

 

 

XCV Threshold

 

 

 

 

Network Interface

 

 

 

 

 

 

 

Active Controller

 

 

 

 

 

 

 

 

 

 

 

VT Mode

 

 

 

 

 

Protection Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

Network Protection

 

 

 

 

 

 

 

 

 

 

Max Switch Threshold

 

 

 

 

Miscellaneous

 

Loopback Timeout

 

 

 

 

 

 

 

 

Min Switching Period

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

External Clock Configuration

 

PRI Ext. Clock

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VT/Port Mapping>

 

First

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T1 State

 

Last

 

 

 

 

VT Interface #1-28

 

 

 

 

 

 

 

 

 

 

T1 Coding

 

State

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T1 Remote Loopbacks

 

Line Coding

 

 

 

 

 

 

 

T1 Circuit Protection

 

 

T1 Line Length

 

 

 

 

 

 

 

Hairpin Loopback

 

 

Circuit Protection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Line ID

 

Loopback Detection

 

VT Interface

 

Set Multiple

 

 

 

 

Apply State

 

 

 

 

Set Cross-ConnectMapping

 

 

 

 

Apply Line Length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Restore VT Mapping Defaults

 

 

 

 

Apply Circuit Protection

 

 

 

 

Protection Threshold

 

 

 

 

 

Apply Loopback Protection

 

 

 

 

 

 

 

Local IP Address

 

 

 

 

 

 

XCV Threshold

 

 

Apply All

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gateway IP Address

 

 

 

 

 

 

 

 

 

Subnet Mask

 

 

 

 

 

 

 

 

 

 

 

 

 

Trap IP Address

 

 

 

 

 

 

 

Management Port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dial-upOptions

 

Trap Generation

 

 

 

 

MGMT Options

 

TL1 Setup

 

 

Read Community Name

 

System

 

 

 

 

 

 

 

 

SNMP MGMT Options

 

 

 

 

Write Community Name

 

Management

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Trap Community Name

 

 

 

 

 

 

 

Password

 

 

 

 

 

 

 

 

 

 

Alarm Relay Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminal Timeout

 

 

 

 

 

System Security

 

 

 

 

 

 

 

 

 

 

IP Security

 

Equipment Identification

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Date & Time

 

IP Hosts

 

Syslog Setup

 

 

 

 

Miscellaneous

 

 

 

 

 

Save on Logout

 

 

 

 

 

 

 

 

 

 

Craft baud rate

 

 

 

 

Load Default Settings

 

Update via XMODEM

 

 

 

Utilities

 

 

 

Server ID

 

 

 

 

 

 

 

 

 

 

 

 

 

Update FLASH Software

 

Update via TFTP Server

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Config Transfer

 

 

 

 

Server Filename

 

 

 

 

 

 

 

 

 

 

Load and Use

 

 

 

 

System Reset

 

Immediate

 

 

 

 

 

 

 

 

Save Config Remotely

 

Save Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

Scheduled Reset Time

 

 

Figure 3-2.Configuration Menu Tree

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Chapter 3. Configuration

NETWORK INTERFACE

Select NETWORK INTERFACE to access the network configuration parameters (seeFigure 3-3).Configure the MX2800STS-1network settings to match theSTS-1signal received from the service provider.

Figure 3-3.Network Configuration Menu

STS-1Configuration

Use the STS-1 CONFIGURATION selections described below to configure theSTS-1network settings to match your application.

Line Length

Set the line length to reflect the physical length of the STS-1network line. Set toLONG if the cabling distance is between225-450feet; set toSHORT if the distance is less than 225 feet.

Timing

Selects the source of timing used to derive the transmit signal. The MX2800 STS-1has three modes of timing operation:LOOP,FREE- RUN, andEXTERNAL.LOOP timing configures the unit to recover clocking from theSTS-1receive signal. Loss of theSTS-1receive

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MX2800 STS-1User Manual

3-3

Chapter 3. Configuration

signal or reception of AIS will cause the unit to enter hold-overmode. TheSTS-1receive signal must be valid for at least 10 seconds for the unit to exithold-overmode and restore loop timing.

When the unit is configured for FREE-RUN timing mode, timing is derived from a+/-20ppm internal reference providing a SONET Minimum Clock (SMC).

Setting the unit to EXTERNAL timing mode configures the unit to derive clocking from one of the two external sources selected in thePRI EXT. CLOCK andSEC EXT. CLOCK options. These two entries select which of the 28 active T1/E1 ports will be used as the external clock source. The external clock source may be disabled (if only one source exists, or no external clock sources are desired). A valid clock source is one on which neither LOS or AIS conditions exist. The selected T1/E1 may be a data carrying tributary. When both sources are configured, failure of one source will cause the unit to switch to the other source (if it is a valid source). Failure of both sources will cause the unit to enterhold-overmode. At least one external clock source must be valid for at least 10 seconds for the unit to exithold-overmode and restore external clock timing.

Switching between PRImary andSECondary external clock sources isnon-reverting.

XCV Threshold

The XCV THRESHOLD (excessive code violations threshold) sets a limit on code violations accepted by the unit before it switches controller cards. If set toDISABLED, code violations will not cause the unit to switch controller cards. The threshold limits are described in the following chart:

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